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1、2014高考英语阅读理解基础全程训练(18)及答案较难题目特训：科普知识类InthelongdiscussionofwaterontheMoon,anewstudycontradiots（与相矛盾）somerecentreportsthatsaytheMoonhadwateratthetimeofitsformation.AgroupofresearchersreportsinthejournalSciencethatwhentheMoonwascreated,some4.5billionyearsago,therewasnotmuch
2、hydrogen（氢气）onit,andthereforenowaler.TheresearcherssurveyedandevaluatedthisbyanalyzingchlorineisotopesfoundinlunarrocksamplesfromApollomissions.Therongeofchlorine（氯）isotopesinlunarsampleswas25timesthatfoundinsamplesfromEarth.uIftheMoonhadsignificantlevelsofhydrogen,asEar
3、thclid,thisrangewouldhavebeenfarless,”saidZacharyD.Sharp,ascientistintheDepartmentofEarthandPlanetarySciencesandthestudy'sleadauthor.“Thechlorinewouldhavestucktogetherwithhydrogen,formingcompoundslikehydrogenchloride,andescapedfromtheMoon'ssurface,”hesaid.Theabundanceofc
4、hlorineindicatesalackofhydrogenandwater."TheamountofwaterontheMoonwaswaytoolowforlifetohaveeverhavepossiblyhaveexistedthere,”hesaid・MostscientistsbelievetheMoonwasformedwhenalargeobjectstruckEarth,breakingoffachunk（avastpiece）thathassinceorbitedEarth・OnEarth,goesonetheor
5、y,waterwasreleasedasstearnfrommoltenbasaIts（玄武岩）overtime,eventuallyformingbodiesofwater・“AnunderstandingofwhethertheMoonwasdryorwetwillhelpusunderstandhowwaterappearedonEarth,”Dr.Sharpsaid.1.Anewstudyindicatesthatonthemoon.A.thereispientyofwaterBwaterisunlikelytoexistC・w
6、aterexistedinthepastD・thereisalittiewaternow2・Theauthorwouldliketotellusthroughthesixthparagraph・A・whythereisnowaterontheMoonB・howtheMoonwasformedC.whentheEarthstrucktheMoonD.wheretheMoonorbited3.Whatdoestheunderlinedword“this”standforinthesecondparagraph?A.Neitherhydrog
7、ennorwaterontheMoon.ToomuchchlorineisotopesontheMoon.C・Notbeingmuchhydrogen,nowaterontheMoon.D.MorechlorineexistsontheMoonthanEarth.4.WhichofthefollowingisNOTTRUEaccordingtothepassage?A・ZacharyD・Sharp,ascientistofNewMexicowasinchargeofthenewstudy.B・Chlorineisotopesare25t
8、imesinlunarlargerthanEarth.C.Themoreabundantchloride,theshorterhydrogenandwater.D.Thenewstudyisbenefici
